Jig for separating coal and like material prom foreign matter



c. v. KING.

HG FOR SEPARATING COAL AND LIKE MATERIAL FROM FOREIGN MATTER.

I APPLICATION FILED APR-17,1919. 1 ,360, 1 16. Patented Nov. 23, 1920.

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APPLICATION FILED APR-17,1919.

Patented Nov. 23, 1920.

HG SEPARATING COAL AND LIKE MATERIAL FROM FOREIGN MATTER.

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UNITED STATES PATENT ori'lcs.

CHARLES V. KING, SHENANDOAH, PENNSYLVANIA.

Jreron SEPARATING ooAL Ann LIKE MATERIAL FROM FOREIGN MATTER.

Application filed April 17,

To all whom it may concern: I

Be it known that 1, CHARLES V. KING, a citizen of the United States, and a resident of Shenandoah, county of Schuylkill, State of Pennsylvania, haveinvented certain Improvements in Jigs for Separating Coal and like Material from Foreignv Matter, of which the following is a specification.

The object of my invention isto construct a jig which will more completely separate coal from slate, sand, and other foreign matter than heretofore, and in which the amount of coal carried with the waste material is reduced to a minimum.

The invention also relates to certain details of construction which will be fully described hereinafter.

In the accompanying drawings:

Figure 1 is a longitudinal sectional view of my improved jig;

Fig. 2 is a plan view;

Fig. 3 is a sectional viewon the line 33, Fig. 1;

Fig. 41 is an end view; and i Fig. is a detached perspective View of the screen.

1 is a frame. 2 is a tank divided by a vertical partition3 forming a plunger chamber 4 and a separating chamber 5; In the plunger chamber is a plunger 6 connected by a'rod 7 to an eccentric 8 on a shaft 9 driven by any suitable. means. 10 is a screen arranged at a slight angle forming a partition between the lower portion of the tank 2 and the separating chamber and as the plunger is reciprocated the water contained in the'tank is forced up through the perforations in the screen carrying with it the particles of coal, while the heavier particles of rock, slate,

sand, &c., settle at the bottom.

11 is an adjustable plate adapted to guides in the side walls of the tank and secured to the upper end of this plate is a screw 12 on which is a handled nut 13. On turn-- ing the nut the plate can be raised or lowered to control the amount of coal flowing from the compartment 1 1 into the separating chamber 5. 15 is a chute, preferably divided into two parts and forming a Weir 16 over which the coal and water flow when the plunger is depressed and the level of the water in the separating chamber is raised. At the front end of the separating chamber is a partition 17, which forms a settling chamber 18. This partition 17 terminates at a point above the perforated plate 1.0 so as Specification of Letters Patent. Patgntgd N 23, 1 920.

1919. Serial No. 290.661.

to allow the rock, sand, and other foreign matter, to pass under the partition into the settling chamber 18. In'the front wall of this chamber is a discharge opening 20 controlled by a gate 21 connected by a rod 22 to a pivoted operating lever 23 so-that, on

(raising the gate, the rock, and other foreign matter, will flow from the settling chamher into any suitable receptacle or conveyer.

It will be noticed that the bottom 26 of the settling chamber is lower than the perforated floor of the separating chamber.

are used for coal of various sizes so that if barley coal, which is exceedingly fine, is being jigged, the perforations are of such a size as to allow anything below thesize of barley to pass through the perforations and into the tank 2. The fine particles of dust and other material can be discharged through a pipe 24, which is provided with a valve 25, while the particles of coal larger than the openings in the screen will be carried upward by the water and discharged through the chute 15. The sand, slate, and other foreign matter, will settle on the perforated plate and will gradually flow under the partition 17 into the settling chamber 18 from which they can be drawn when the foreign matter in the settling chamber accumulates sufficiently.

It will be seen, by the above invention, that I am enabled to separate a given grade of coal from the foreign matter and to provide means for discharging the foreign matter from the jig without loss of coal to any great extent, as the partition 17 will hold the coal back, allowing the foreign matter to escape, thus increasing the capacity of the jig and saving a large percentage of the coal which heretofore went to waste, or which had to be rescreened or rejigged.

By providing the settling chamber at the point indicated, when the gate valve is opened, the material in the upper portion of the separating chamber is not disturbedas would be the case where the partition is not not only the foreign matter, but also a large quantity of coal.

I preferably allow the valve 25, at the bot tom of the tank,vto remain open to a certain extent so that the fine particles of material will flow away from the tank,

I claim:

The combination in a jig, of a plunger chamber; a separating chamber; a reciprocating plungerin the plunger chamber; an inclined perforatedpla-te forming the bottom of the separating chamber; a settling chamber at the forward end of said plate,

the bottom of said settling chamber being formed into a plurality of oppositely inclined faces adapted'to direct the material in said chamber toward a common outlet therebetween; a valve controlling said outlet; a vertical partition between the separating and settling chambers, said partition having its lower end disposed above the perforated plate thereby forming a passage between the said chambers; an outlet for the water and lighter materials above the set tling chamber; and an adjustable plate in the rear of the separating chamber, said plate forming a receiving chamber and being vertically adjustble to vary the passage from the said receiving chamber to the separating chamber.

In witness whereof I- aflix my signature.

CHARLES V. KING. 

